Undecennial

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Wiktionary, Creative Commons Attribution/Share-Alike License
  • adj. Occurring or observed every eleventh year.
  • the GNU version of the Collaborative International Dictionary of English
  • adj. Occurring or observed every eleventh year; belonging to, or continuing, a period of eleven years; undecennary.
  • The Century Dictionary and Cyclopedia
  • Belonging or relating to a period of eleven years; occurring or observed every eleven years, or every eleventh year: as, an undecennial festival.
  • Synonym
    Words with the same meaning